Results 21 to 30 of about 2,918,823 (240)

Global modelling of H2 mixing ratios and isotopic compositions with the TM5 model [PDF]

open access: yes, 2011
The isotopic composition of molecular hydrogen (H2) contains independent information for constraining the global H2 budget. To explore this, we have implemented hydrogen sources and sinks, including their stable isotopic composition and isotope ...
Langenfelds, R.L.   +16 more
core   +3 more sources

Global dust model intercomparison in AeroCom phase I [PDF]

open access: yes, 2011
This study presents the results of a broad intercomparison of a total of 15 global aerosol models within the AeroCom project. Each model is compared to observations related to desert dust aerosols, their direct radiative effect, and their impact on the ...
Schulz, M.   +8 more
core   +2 more sources

Development of a chlorine chemistry module for the Master Chemical Mechanism [PDF]

open access: yesGeoscientific Model Development, 2015
The chlorine atom (Cl·) has a high potential to perturb atmospheric photochemistry by oxidizing volatile organic compounds (VOCs), but the exact role it plays in the polluted troposphere remains unclear.
L. K. Xue   +6 more
doaj   +1 more source

Sources of uncertainties in modelling black carbon at the global scale [PDF]

open access: yes, 2010
Our understanding of the global black carbon (BC) cycle is essentially qualitative due to uncertainties in our knowledge of its properties. This work investigates two source of uncertainties in modelling black carbon: those due to the use of different ...
J. Wilson   +20 more
core   +3 more sources

Do atmospheric aerosols form glasses? [PDF]

open access: yes, 2008
Zobrist B, Marcolli C, Pedernera DA, Koop T. Do atmospheric aerosols form glasses? ATMOSPHERIC CHEMISTRY AND PHYSICS. 2008;8(17):5221-5244.A new process is presented by which water soluble organics might influence ice nucleation, ice growth, chemical ...
Koop, Thomas   +12 more
core   +2 more sources

Characterization of a boreal convective boundary layer and its impact on atmospheric chemistry during HUMPPA-COPEC-2010 [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
We studied the atmospheric boundary layer (ABL) dynamics and the impact on atmospheric chemistry during the HUMPPA-COPEC-2010 campaign. We used vertical profiles of potential temperature and specific moisture, obtained from 132 radio soundings, to ...
H. G. Ouwersloot   +8 more
doaj   +1 more source

An overview of atmospheric deposition chemistry over the Alps: present status and long-term trends [PDF]

open access: yes, 2006
Several research programs monitoring atmospheric deposition have been launched in the Alpine countries in the last few decades. This paper uses data from previous and ongoing projects to: (i) investigate geographical variability in wet deposition ...
Thimonier, Anne   +14 more
core   +1 more source

Editorial for the Special Issue “Atmospheric Dispersion and Chemistry Models: Advances and Applications”

open access: yesAtmosphere, 2023
Atmospheric dispersion and chemical transport models (CTMs) are a key tool in both atmospheric chemistry and environmental sciences [...]
Daniel Viúdez-Moreiras
doaj   +1 more source

Introducing Volatile Organic Compound Model Intercomparison Project (VOCMIP) [PDF]

open access: yesGeoscientific Model Development
Volatile organic compounds (VOCs) play an important role in atmospheric chemistry, influencing the cycling of peroxy and hydroxyl radicals, the formation of tropospheric ozone, hydrogen, secondary organic aerosol, and the lifetime of methane and other ...
G. Myhre   +29 more
doaj   +1 more source

Scalable diagnostics for global atmospheric chemistry using Ristretto library (version 1.0) [PDF]

open access: yesGeoscientific Model Development, 2019
We introduce a new set of algorithmic tools capable of producing scalable, low-rank decompositions of global spatiotemporal atmospheric chemistry data.
M. Velegar   +4 more
doaj   +1 more source

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